Peter Benton - Season 15 and In The End

Season 15 and In The End

During the 15th and final season of ER, at the end of the episode "The Book of Abby", long-serving nurse Haleh Adams shows the departing Abby Lockhart a closet wall where all the past doctors and employees have put their locker name tags. Amongst them, the tag "Benton" can be seen.

Benton returns in the 19th episode of the 15th (final) season of ER in the episode "Old Times" which first was broadcast on 12 March 2009. In the episode he visits old friend and former student John Carter who is awaiting a kidney transplant, and we learn that Benton has left private practice for a surgical attending position at Northwestern University Hospital. He is seen wearing a wedding ring, so it is assumed he has married Cleo Finch.

In the series finale, Benton goes to Carter's opening of his new hospital with Reese. He also goes to the afterparty with Carter, Susan, and Weaver and meets Elizabeth and Rachel. In a conversation, he reveals that he and Cleo are still together.